From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 104248] Black screen after switching refresh rate from 144 Hz Date: Wed, 13 Dec 2017 19:26:07 +0000 Message-ID: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0346312147==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [IPv6:2610:10:20:722:a800:ff:fe98:4b55]) by gabe.freedesktop.org (Postfix) with ESMTP id D96646E581 for ; Wed, 13 Dec 2017 19:26:06 +0000 (UTC) List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============0346312147== Content-Type: multipart/alternative; boundary="15131931660.478c.5247"; charset="UTF-8" --15131931660.478c.5247 Date: Wed, 13 Dec 2017 19:26:06 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated https://bugs.freedesktop.org/show_bug.cgi?id=3D104248 Bug ID: 104248 Summary: Black screen after switching refresh rate from 144 Hz Product: DRI Version: XOrg git Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: normal Priority: medium Component: DRM/AMDgpu Assignee: dri-devel@lists.freedesktop.org Reporter: thomas-lange2@gmx.de Created attachment 136148 --> https://bugs.freedesktop.org/attachment.cgi?id=3D136148&action=3Dedit Output of dmesg My monitor supports 144 Hz as refresh rate which works fine. But switching = from 144 Hz to a lower value (like 120 Hz) always results in a black screen with= no signal. The intention is to use 144 Hz for games and 120 Hz on the desktop. PowerPl= ay doesn't work with 144 Hz, so the GPU wastes energy and gets hotter than necessary. Switching between other rates (like 120 -> 60 -> 100 -> 60 -> 120) works fi= ne. It also worked correctly with previous cards (HD4830 and HD6850). The workaround is to stay on 120 Hz all the time. When the screen shows no signal, resuming from standby brings it back. Things I have tried so far: 1. Disabling DPM with "echo high > /sys/class/drm/card0/device/power_profil= e" -> Same results 2. Using Linux 4.15-RC3 with enabled DC (amdgpu.dc=3D1) -> Refresh rates higher than 60 Hz are not supported -> Is this known or should I file a separate bug report? Hardware: PowerColor RX 560 (POLARIS 11) LG Electronics 24GM77-B, connected via DVI cable Software: Linux 4.14.5 x86_64 Mesa 17.2.6 Xorg 1.19.5 xf86-video-amdgpu 1.4.0 --=20 You are receiving this mail because: You are the assignee for the bug.= --15131931660.478c.5247 Date: Wed, 13 Dec 2017 19:26:06 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated
Bug ID 104248
Summary Black screen after switching refresh rate from 144 Hz
Product DRI
Version XOrg git
Hardware x86-64 (AMD64)
OS Linux (All)
Status NEW
Severity normal
Priority medium
Component DRM/AMDgpu
Assignee dri-devel@lists.freedesktop.org
Reporter thomas-lange2@gmx.de 

Created attachment 136148 [details]
Output of dmesg

My monitor supports 144 Hz as refresh rate which works fine. But switching =
from
144 Hz to a lower value (like 120 Hz) always results in a black screen with=
 no
signal.

The intention is to use 144 Hz for games and 120 Hz on the desktop. PowerPl=
ay
doesn't work with 144 Hz, so the GPU wastes energy and gets hotter than
necessary.

Switching between other rates (like 120 -> 60 -> 100 -> 60 -> 1=
20) works fine.
It also worked correctly with previous cards (HD4830 and HD6850).

The workaround is to stay on 120 Hz all the time. When the screen shows no
signal, resuming from standby brings it back.

Things I have tried so far:
1. Disabling DPM with "echo high > /sys/class/drm/card0/device/powe=
r_profile"
-> Same results

2. Using Linux 4.15-RC3 with enabled DC (amdgpu.dc=3D1)
-> Refresh rates higher than 60 Hz are not supported
-> Is this known or should I file a separate bug report?

Hardware:
PowerColor RX 560 (POLARIS 11)
LG Electronics 24GM77-B, connected via DVI cable

Software:
Linux 4.14.5 x86_64
Mesa 17.2.6
Xorg 1.19.5
xf86-video-amdgpu 1.4.0

You are receiving this mail because:
  • You are the assignee for the bug.
= --15131931660.478c.5247-- --===============0346312147== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KZHJpLWRldmVs IG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlz dHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVsCg== --===============0346312147==-- From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 104248] Black screen after switching refresh rate from 144 Hz Date: Wed, 13 Dec 2017 19:27:09 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1506377435==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [IPv6:2610:10:20:722:a800:ff:fe98:4b55]) by gabe.freedesktop.org (Postfix) with ESMTP id 1D0206E583 for ; Wed, 13 Dec 2017 19:27:09 +0000 (UTC) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============1506377435== Content-Type: multipart/alternative; boundary="15131932290.a49aaC6.5759"; charset="UTF-8" --15131932290.a49aaC6.5759 Date: Wed, 13 Dec 2017 19:27:09 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated https://bugs.freedesktop.org/show_bug.cgi?id=3D104248 --- Comment #1 from Thomas Lange --- Created attachment 136149 --> https://bugs.freedesktop.org/attachment.cgi?id=3D136149&action=3Dedit Output of xrandr If you need more information, let me know. --=20 You are receiving this mail because: You are the assignee for the bug.= --15131932290.a49aaC6.5759 Date: Wed, 13 Dec 2017 19:27:09 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated

Commen= t # 1 on bug 10424= 8 from Thomas Lange 
Created attachment 136149 <=
a href=3D"attachment.cgi?id=3D136149&action=3Dedit" title=3D"Output of =
xrandr">[details]
Output of xrandr

If you need more information, let me know.

You are receiving this mail because:
  • You are the assignee for the bug.
= --15131932290.a49aaC6.5759-- --===============1506377435== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KZHJpLWRldmVs IG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlz dHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVsCg== --===============1506377435==-- From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 104248] Black screen after switching refresh rate from 144 Hz Date: Wed, 13 Dec 2017 19:30:48 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0877427216==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 89F1B6E583 for ; Wed, 13 Dec 2017 19:30:48 +0000 (UTC) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============0877427216== Content-Type: multipart/alternative; boundary="15131934480.ab41b36D.5502"; charset="UTF-8" --15131934480.ab41b36D.5502 Date: Wed, 13 Dec 2017 19:30:48 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated https://bugs.freedesktop.org/show_bug.cgi?id=3D104248 --- Comment #2 from Thomas Lange --- Created attachment 136150 --> https://bugs.freedesktop.org/attachment.cgi?id=3D136150&action=3Dedit Xorg log --=20 You are receiving this mail because: You are the assignee for the bug.= --15131934480.ab41b36D.5502 Date: Wed, 13 Dec 2017 19:30:48 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated

You are receiving this mail because:
  • You are the assignee for the bug.
= --15131934480.ab41b36D.5502-- --===============0877427216== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KZHJpLWRldmVs IG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlz dHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVsCg== --===============0877427216==-- From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 104248] Black screen after switching refresh rate from 144 Hz Date: Thu, 21 Dec 2017 00:37:38 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1848137102==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 19EF96E55D for ; Thu, 21 Dec 2017 00:37:38 +0000 (UTC) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============1848137102== Content-Type: multipart/alternative; boundary="15138166580.4D083b8c0.28745"; charset="UTF-8" --15138166580.4D083b8c0.28745 Date: Thu, 21 Dec 2017 00:37:37 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated https://bugs.freedesktop.org/show_bug.cgi?id=3D104248 --- Comment #3 from Harry Wentland --- I'm working on fixing DVI on DC with timings requiring dual link, like I as= sume your 120+ Hz timings require. That work is tracked under https://bugs.freedesktop.org/show_bug.cgi?id=3D103953. --=20 You are receiving this mail because: You are the assignee for the bug.= --15138166580.4D083b8c0.28745 Date: Thu, 21 Dec 2017 00:37:38 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated

Commen= t # 3 on bug 10424= 8 from Harry Wentland 
I'm working on fixing DVI on DC with timings requiring dual li=
nk, like I assume
your 120+ Hz timings require. That work is tracked under
https://bugs.freedesktop.org/show_bug.=
cgi?id=3D103953.

You are receiving this mail because:
  • You are the assignee for the bug.
= --15138166580.4D083b8c0.28745-- --===============1848137102== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KZHJpLWRldmVs IG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlz dHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVsCg== --===============1848137102==-- From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 104248] Black screen after switching refresh rate from 144 Hz Date: Thu, 19 Jul 2018 20:57:11 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0581480470==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [IPv6:2610:10:20:722:a800:ff:fe98:4b55]) by gabe.freedesktop.org (Postfix) with ESMTP id 0962A6E3B2 for ; Thu, 19 Jul 2018 20:57:11 +0000 (UTC) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============0581480470== Content-Type: multipart/alternative; boundary="15320338300.dC063c9db.31064" Content-Transfer-Encoding: 7bit --15320338300.dC063c9db.31064 Date: Thu, 19 Jul 2018 20:57:10 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated https://bugs.freedesktop.org/show_bug.cgi?id=3D104248 Thomas Lange changed: What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |FIXED Status|NEW |RESOLVED --- Comment #4 from Thomas Lange --- With kernel 4.17.7 I am no longer able to reproduce this. Hence marking as RESOLVED. --=20 You are receiving this mail because: You are the assignee for the bug.= --15320338300.dC063c9db.31064 Date: Thu, 19 Jul 2018 20:57:10 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated <= span class=3D"fn">Thomas Lange changed bug 10424= 8
What Removed Added
Resolution --- FIXED
Status NEW RESOLVED

Commen= t # 4 on bug 10424= 8 from Thomas Lange 
With kernel 4.17.7 I am no longer able to reproduce this. Henc=
e marking as
RESOLVED.

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= --15320338300.dC063c9db.31064-- --===============0581480470== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KZHJpLWRldmVs IG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlz dHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVsCg== --===============0581480470==--